Global Patent Index - EP 0486232 A2

EP 0486232 A2 19920520 - ADPCM decoder with error detection.

Title (en)

ADPCM decoder with error detection.

Title (de)

ADPCM-Dekoder mit Fehlererkennung.

Title (fr)

Décodeur MICDA à détection d'erreur.

Publication

EP 0486232 A2 19920520 (EN)

Application

EP 91310361 A 19911108

Priority

GB 9024515 A 19901112

Abstract (en)

Decoding apparatus for decoding received ADPCM data signals includes means for quickly detecting errors in the data values in the form of unallocated values or values which are unlikely to occur. The apparatus is intended for use in cordless telephones to eliminate extraneous and disturbing sound signals which can be generated by the decoding apparatus when the signals received by the telephone become weak and are misread before a cyclic redundancy check circuit detects the error. <IMAGE>

IPC 1-7

H04B 14/06

IPC 8 full level

H04B 14/06 (2006.01); H04L 1/00 (2006.01)

CPC (source: EP US)

H04B 14/068 (2013.01 - EP US)

Designated contracting state (EPC)

DE FR GB IT NL SE

DOCDB simple family (publication)

EP 0486232 A2 19920520; EP 0486232 A3 19930317; EP 0486232 B1 19980916; DE 69130202 D1 19981022; DE 69130202 T2 19990422; GB 9024515 D0 19910102; JP H0685767 A 19940325; US 6108808 A 20000822

DOCDB simple family (application)

EP 91310361 A 19911108; DE 69130202 T 19911108; GB 9024515 A 19901112; JP 29574391 A 19911112; US 79061891 A 19911108